Home / 49,853.52-74,715.21-20,236.68

Finding the Fourth Proportional to 49,853.52, 74,715.21 and 20,236.68

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Solution

The fourth proportional to 49,853.52, 74,715.21 and 20,236.68 is: 30,328.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,853.52 : 74,715.21 = 20,236.68 : x
  2. Step 2: Convert to fraction form
    49,853.52/74,715.21 = 20,236.68/x
  3. Step 3: Cross multiply
    49,853.52x = 74,715.21 × 20,236.68
  4. Step 4: Simplify right side
    49,853.52x = 1,511,987,795.90
  5. Step 5: Solve for x
    x = 1,511,987,795.90/49,853.52
  6. Step 6: Final answer
    x = 30,328.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.